


Commodore PET Parallel User Port
24 PIN UNKNOWN CONNECTOR
                                 1  1  1
      1  2  3  4  5  6  7  8  9  0  1  2
      =  =  =  =  =  =  =  =  =  =  =  =
     ### ######################### ######
      =  =  =  =  =  =  =  =  =  =  =  =
      A  B  C  D  E  F  H  J  K  L  M  N
  
    | Pin | Name | 
  
    | 1 | System Ground | 
  
    | 2 | TV Video | 
  
    | 3 | IEEE-SRQ | 
  
    | 4 | IEEE-EOI | 
  
    | 5 | Diagnostic Sense | 
  
    | 6 | Cass.1 Read | 
  
    | 7 | Cass.2 Read | 
  
    | 8 | Diag Tape Wrt. | 
  
    | 9 | TV Vertical | 
  
    | 10 | TV Horizontal | 
  
    | 11 | GND | 
  
    | 12 | GND | 
  
    | A | GND | 
  
    | B | CA1 | 
  
    | C | PB0 | 
  
    | D | PB1 | 
  
    | E | PB2 | 
  
    | F | PB3 | 
  
    | H | PB4 | 
  
    | J | PB5 | 
  
    | K | PB6 | 
  
    | L | PB7 | 
  
    | M | PA2 (CB2) | 
  
    | N | GND | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10